Did you go to university? atrovent inhaler composition The space cannon is to be mounted on the Hayabusa-2 vehicle, which will carry it to the asteroid, which orbits between Earth and Mars. This is essentially a kinetic impact weapon that relies on an explosive charge to launch a 4lb slug into the surface. The spacecraft will release the weapon, allowing it to float downward while it takes cover on the opposite side of 1999JU3.